Had me confused as well.. I thought it referenced a secret "Mac" thing... and you had to have one to know the code..sort of like the secret hand shake of the Masons...
Well it
is one of the most highly protected secrets, known only to Mac users, but I would be happy to tell you about it if you would just sign this little non-disclosure agreement, here...
Oh wait! You can't coz you don't use a Mac.
